Bibliographies thématiques / Fisheries South Australia

Sommaire

  1. Articles de revues
  2. Thèses
  3. Livres
  4. Chapitres de livres

Littérature scientifique sur le sujet « Fisheries South Australia »

Auteur : Grafiati
Publié le 4 juin 2021
Mis à jour le 1 février 2022

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les listes thématiques d’articles de revues, de livres, de thèses, de rapports de conférences et d’autres sources académiques sur le sujet « Fisheries South Australia ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Articles de revues sur le sujet "Fisheries South Australia"

1

Barnes, Thomas C., Claudia Junge, Steven A. Myers, Mathew D. Taylor, Paul J. Rogers, Greg J. Ferguson, Jason A. Lieschke, Stephen C. Donnellan et Bronwyn M. Gillanders. « Population structure in a wide-ranging coastal teleost (Argyrosomus japonicus, Sciaenidae) reflects marine biogeography across southern Australia ». Marine and Freshwater Research 67, no 8 (2016) : 1103. http://dx.doi.org/10.1071/mf15044.

Texte intégral
Résumé :
Population structure in marine teleosts is often investigated to aid conservation and fisheries management (e.g. to assess population structure to inform restocking programs). We assessed genetic population structure of the important estuary-associated marine fish, mulloway (Argyrosomus japonicus), within Australian waters and between Australia and South Africa. Genetic variation was investigated at 13 polymorphic microsatellite markers. FST values and Bayesian estimates in STRUCTURE suggested population differentiation of mulloway within Australia and confirm strong differentiation between South Africa and Australia. The 12 Australian sample sets fell into one of four spatially separated genetic clusters. Initially, a significant signal of isolation-by-distance (IBD) was evident among Australian populations. However, further investigation by decomposed-pairwise-regression (DPR) suggested five sample sets were influenced more by genetic-drift, rather than gene-flow and drift equilibrium, as expected in strong IBD cases. Cryptic oceanographic and topographical influences may isolate mulloway populations from south-western Australia. The results demonstrate that DPR is suitable to assess population structure of coastal marine species where barriers to gene flow may be less obvious than in freshwater systems. Information on the relative strengths of gene flow and genetic drift facilitates a more comprehensive understanding of the evolutionary forces that lead to population structure, which in turn informs fisheries and assists conservation management. Large-bodied predatory scale-fish may be under increasing pressure on a global scale, owing to a variety of anthropogenic reasons. In southern Australia, the iconic sciaenid A. japonicus (mulloway, jewfish or kob) is no exception. Despite the species supporting important fisheries, much of its ecology is poorly understood. It is possible that a greater understanding of their genetic population structure can help ensure a sustainable future for the only southern Australian sciaenid.
Styles APA, Harvard, Vancouver, ISO, etc.
2

Creighton, Colin, Paul I. Boon, Justin D. Brookes et Marcus Sheaves. « Repairing Australia's estuaries for improved fisheries production – what benefits, at what cost ? » Marine and Freshwater Research 66, no 6 (2015) : 493. http://dx.doi.org/10.1071/mf14041.

Texte intégral
Résumé :
An Australia-wide assessment of ~1000 estuaries and embayments undertaken by the National Land and Water Resources Audit of 1997–2002 indicated that ~30% were modified to some degree. The most highly degraded were in New South Wales, where ~40% were classified as ‘extensively modified’ and <10% were ‘near pristine’. Since that review, urban populations have continued to grow rapidly, and increasing pressures for industrial and agricultural development in the coastal zone have resulted in ongoing degradation of Australia's estuaries and embayments. This degradation has had serious effects on biodiversity, and commercial and recreational fishing. A business case is developed that shows that an Australia-wide investment of AU$350 million into repair will be returned in less than 5 years. This return is merely from improved productivity of commercial fisheries of a limited number of fish, shellfish and crustacean species. Estuary repair represents an outstanding return on investment, possibly far greater than most of Australia's previous environmental repair initiatives and with clearly demonstrated outcomes across the Australian food and services economies.
Styles APA, Harvard, Vancouver, ISO, etc.
3

Lynch, T. P., C. B. Smallwood, F. A. Ochwada-Doyle, J. Lyle, J. Williams, K. L. Ryan, C. Devine, B. Gibson et A. Jordan. « A cross continental scale comparison of Australian offshore recreational fisheries research and its applications to Marine Park and fisheries management ». ICES Journal of Marine Science 77, no 3 (10 juin 2019) : 1190–205. http://dx.doi.org/10.1093/icesjms/fsz092.

Texte intégral
Résumé :
Abstract Recreational fishing is popular in Australia and is managed by individual states in consultation with the Commonwealth for those fisheries that they regulate and also for Australian Marine Parks (AMPs). Fishers regularly access both state and offshore Commonwealth waters but this offshore component of the recreational fishery is poorly understood. Our study tested the functionality of existing state-based surveys in Western Australia (WA) and New South Wales (NSW) to better inform Commonwealth fisheries and AMP managers about recreational fishing in their jurisdictions. Catch estimates for nine species of interest to the Commonwealth were developed and two case study AMPs [Ningaloo (WA) and The Hunter (NSW)] were also chosen to test the ability of the state survey data to be disaggregated to the park scale. As each state’s fishery survey designs were contextual to their own management needs, the application of the data to Commonwealth jurisdictions were limited by their statistical power, however aspects of each states surveys still provided useful information. Continued evolution of state-wide survey methods, including collection of precise spatial data, and regional over-sampling would be beneficial, particularly where there are multiple stakeholder and jurisdictional interests. National coordination, to temporally align state surveys, would also add value to the existing approaches.
Styles APA, Harvard, Vancouver, ISO, etc.
4

Morgan, Jess A. T., Wayne D. Sumpton, Andrew T. Jones, Alexander B. Campbell, John Stewart, Paul Hamer et Jennifer R. Ovenden. « Assessment of genetic structure among Australian east coast populations of snapper Chrysophrys auratus (Sparidae) ». Marine and Freshwater Research 70, no 7 (2019) : 964. http://dx.doi.org/10.1071/mf18146.

Texte intégral
Résumé :
Snapper Chrysophrys auratus is a high-value food fish in Australia targeted by both commercial and recreational fisheries. Along the east coast of Australia, fisheries are managed under four state jurisdictions (Queensland, Qld; New South Wales, NSW; Victoria, Vic.; and Tasmania, Tas.), each applying different regulations, although it is thought that the fisheries target the same biological stock. An allozyme-based study in the mid-1990s identified a weak genetic disjunction north of Sydney (NSW) questioning the single-stock hypothesis. This study, focused on east-coast C. auratus, used nine microsatellite markers to assess the validity of the allozyme break and investigated whether genetic structure exists further south. Nine locations were sampled spanning four states and over 2000km, including sites north and south of the proposed allozyme disjunction. Analyses confirmed the presence of two distinct biological stocks along the east coast, with a region of genetic overlap around Eden in southern NSW, ~400km south of the allozyme disjunction. The findings indicate that C. auratus off Vic. and Tas. are distinct from those in Qld and NSW. For the purpose of stock assessment and management, the results indicate that Qld and NSW fisheries are targeting a single biological stock.A
Styles APA, Harvard, Vancouver, ISO, etc.
5

Shaughnessy, Peter D., Simon D. Goldsworthy, Paul Burch et Terry E. Dennis. « Pup numbers of the Australian sea lion (Neophoca cinerea) at The Pages Islands, South Australia, over two decades ». Australian Journal of Zoology 61, no 2 (2013) : 112. http://dx.doi.org/10.1071/zo13015.

Texte intégral
Résumé :
The Australian sea lion is an Australian endemic, restricted to South Australia and Western Australia, with 86% of the population in South Australia. It was listed under the Commonwealth Environment Protection and Biodiversity Conservation Act as Vulnerable in February 2005, and the International Union for the Conservation of Nature has listed it as Endangered. Sea lions are taken as bycatch in the gill-net fishery for school shark and gummy shark, and the risk of extinction of breeding colonies is high even from low levels of bycatch. We assessed trends in pup population size at The Pages Islands, a large breeding colony in South Australia. Pup abundance was estimated by direct counting of live and dead pups; the maximum count in each breeding season was used for trend analysis. The average of direct counts of pups in 14 breeding seasons between 1989–90 and 2009–10 was 473 (s.d. = 58.4). There was no trend in pup numbers, contrasting with two other large colonies: Seal Bay, Kangaroo Island (decreasing), and Dangerous Reef (increasing since 2000). The Australian Sea Lion Management Strategy of the Australian Fisheries Management Authority aims to reduce sea lion bycatch in the shark fishery; a key item is a fishery closure around each breeding colony in South Australia. Implementation of the closure around The Pages should lower the risk of bycatch of its sea lions with foraging areas that previously overlapped with the fishery and should allow the colony’s population size to increase.
Styles APA, Harvard, Vancouver, ISO, etc.
6

Faulkner, Adam. « A study of aboriginal fisheries in northern New South Wales, Australia ». Human Dimensions of Wildlife 5, no 4 (décembre 2000) : 83–88. http://dx.doi.org/10.1080/10871200009359197.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
7

Nottage, Jonathan D., Ronald J. West, Steven S. Montgomery et Ken Graham. « Cephalopod diversity in commercial fisheries landings of New South Wales, Australia ». Reviews in Fish Biology and Fisheries 17, no 2-3 (23 décembre 2006) : 271–81. http://dx.doi.org/10.1007/s11160-006-9032-8.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
8

Raoult, V., V. Peddemors et J. E. Williamson. « Biology of angel sharks (Squatina sp.) and sawsharks (Pristiophorus sp.) caught in south-eastern Australian trawl fisheries and the New South Wales shark-meshing (bather-protection) program ». Marine and Freshwater Research 68, no 2 (2017) : 207. http://dx.doi.org/10.1071/mf15369.

Texte intégral
Résumé :
Two species of angel shark (Squatina australis, S. albipunctata) and two species of sawshark (Pristiophorus nudipinnis, P. cirratus) are frequently caught in south-eastern Australia. Little is known of the biology of these elasmobranchs, despite being caught as secondary target species in large numbers. The present study collected morphometric and reproductive data from sharks caught in shark-control nets, commercial fishing trawlers and research trawlers in south-eastern Australia. All four species had female-biased sexual size dimorphism, but growth curves between sexes did not differ. Male S. australis individuals were fully mature at ~800-mm total length, male P. nudipinnis at ~900mm, and male P. cirratus at ~800mm. Anterior pectoral margins could be used to determine total length in all species. No morphometric measurement could reliably separate Squatina spp. or Pristiophorus spp., although S. albipunctata over 1000-mm total length had larger eyes than did S. australis.
Styles APA, Harvard, Vancouver, ISO, etc.
9

Prince, Jeremy D. « Ecosystem of the South East Fishery (Australia), and fisher lore ». Marine and Freshwater Research 52, no 4 (2001) : 431. http://dx.doi.org/10.1071/mf00042.

Texte intégral
Résumé :
A description of the marine ecosystem that sustains fisheries production around south-eastern Australia is based on a synthesis of fisher lore of the demersal trawling sector, a review of the literature and a decade of the author’s field observations. A wide range of species are fished demersally in the South East Fishery (SEF). Until recently, managers and researchers have often implicitly assumed that many of these demersally caught species were neritic and lived in close association with the seabed. In contrast, fisher lore emphasizes the pelagic and oceanic nature of the commercial resource together with its environmentally forced variability. This paper substantially supports the views of the fishers. Up to 90%of the primary production of the SEF ecosystem may be garnered by fish foraging through extensive, but relatively sparse, oceanic phytoplankton and gelatinous zooplankton communities. Sporadically, climatic conditions cause oceanographic features to interact with shelf-break features and create ephemeral hotspots of primary production along the shelf break. Fish of the SEF take advantage of these productivity events to aggregate for feeding and breeding and their episodes of aggregation and dispersion cause the large seasonal variations in catchability observed with the shelf-break species. Implications for ecosystem management are briefly discussed.
Styles APA, Harvard, Vancouver, ISO, etc.
10

Hitchcock, Garrick. « Cross-border trade in Saratoga fingerlings from the Bensbach River, south-west Papua New Guinea ». Pacific Conservation Biology 12, no 3 (2006) : 218. http://dx.doi.org/10.1071/pc060218.

Texte intégral
Résumé :
Saratoga Scleropages jardinii (Saville-Kent 1892) is a popular aquarium and sportsfish native to southern New Guinea and northern Australia. In recent years the people of the Bensbach River area in Papua New Guinea's Western Province have been harvesting wild fingerlings for sale across the nearby international border in Indonesia's Papua Province. From there the fish are sold to dealers in other parts of Asia. The species is protected by law in Indonesia, and subject to various regulations in Australia. In Papua New Guinea there are no controls on its exploitation. Uncontrolled harvesting of fingerlings from the Bensbach and other river systems in south New Guinea has had negative impacts on local fisheries, and led to a decline in the Australian export trade in wild-caught and farm-bred Saratoga.
Styles APA, Harvard, Vancouver, ISO, etc.
Plus de sources

Thèses sur le sujet "Fisheries South Australia"

1

McGlennon, David. « The fisheries biology and population dynamics of snapper Pagrus auratus in northern Spencer Gulf, South Australia / ». Title page, table of contents and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phm4789.pdf.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
2

Rotherham, Douglas. « Fisheries biology, ecology and recreational harvesting of ghost shrimp (trypaea australiensis) in south-eastern Australia ». Access electronically, 2004. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20050301.091443/index.html.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
3

Hancock, Andrew T. « The biology and fishery of Roe's abalone Haliotis roei Gray in south-western Australia, with emphasis on the Perth fishery ». Connect to this title online, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0068/.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

Forrest, Robyn Elizabeth. « Simulation models for estimating productivity and trade-offs in the data-limited fisheries of New South Wales, Australia ». Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/3417.

Texte intégral
Résumé :
Recent shifts towards ecosystem based fisheries management (EBFM) around the world have necessitated consideration of effects of fishing on a larger range of species than previously. Non-selective multispecies fisheries are particularly problematic for EBFM, as they can contribute to erosion of ecosystem structure. The trade-off between catch of productive commercial species and abundance of low-productivity species is unavoidable in most multispecies fisheries. A first step in evaluation of this trade-off is estimation of productivity of different species but this is often hampered by poor data. This thesis develops techniques for estimating productivity for data-limited species and aims to help clarify EBFM policy objectives for the fisheries of New South Wales (NSW), Australia. It begins with development of an age-structured model parameterised in terms of optimal harvest rate, UMSY. UMSY is a measure of productivity, comparable among species and easily communicated to managers. It also represents a valid threshold for prevention of overfishing. The model is used to derive UMSY for 54 Atlantic fish stocks for which recruitment parameters had previously been estimated. In most cases, UMSY was strongly limited by the age at which fish were first caught. However, for some species, UMSY was more strongly constrained by life history attributes. The model was then applied to twelve species of Australian deepwater dogshark (Order Squaliformes), known to have been severely depleted by fishing. Results showed that the range of possible values of UMSY for these species is very low indeed. These findings enabled a preliminary stock assessment for three dogsharks (Centrophorus spp.) currently being considered for threatened species listing. Preliminary results suggest they have been overfished and that overfishing continues. Finally, an Ecopath with Ecosim ecosystem model, representing the 1976 NSW continental slope, is used to illustrate trade-offs in implementation of fishing policies under alternative policy objectives. Results are compared with those of a biogeochemical ecosystem model (Atlantis) of the same system, built by scientists from CSIRO. While there were large differences in model predictions for individual species, they gave similar results when ranking alternative fishing policies, suggesting that ecosystem models may be useful for exploring broad-scale strategic management options.
Styles APA, Harvard, Vancouver, ISO, etc.
5

Kangas, M. I. « Postlarval and juvenile western king prawn Penaeus latisulcatus Kishinovye studies in Gulf St Vincent, South Australia, with reference to the commerical fishery / ». Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phk159.pdf.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
6

Hancock, Andrew. « The biology and fishery of Roe's abalone Haliotis roei Gray in south-western Australia, with emphasis on the Perth fishery / ». Connect to this title, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0068.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
7

Huveneers, Charlie. « The ecology and biology of wobbegong sharks (Genus Orectolobus) in relation to the commercial fishery in New South Wales, Australia ». Thesis, Electronic version, 2007. http://hdl.handle.net/1959.14/198.

Texte intégral
Résumé :
Thesis by publication.
Thesis (PhD)--Macquarie University (Division of Environmental & Life Sciences, Graduate School of the Environment), 2007.
Bibliography: p. 267-303.
General introduction -- Redescription of two species of wobbegongs (Chondrichthyes: Orectolobidae) with elevation of Orectolobus halei Whitley 1940 to species level -- Using recreational scuba-divers to survey the relative abundance and distribution of wobbegong sharks (Family: Orectolobidae) in New South Wales, Australia -- Observations of localised movements and residence time of wobbegong sharks (Orectolobus halei) at Fish Rock, New South Wales, Australia -- Length-frequency distribution, length-length, mass-mass and mass-length relationships of wobbegong sharks (Genus Orectolobus) commercially fished in New South Wales, Australia -- Quantitative diet assessment of wobbegong sharks (Genus Orectolobus) in New South Wales, Australia -- Reproductive synchrony of three sympatric species of wobbegong shark (Genus Orectolobus) in New South Wales, Australia -- Age and growth of wobbegong sharks (Genus Orectolobus) in New South Wales, Australia.
In New South Wales, Australia, wobbegong sharks (Orectolobidae) have been commercially targetted by the Ocean Trap and Line Fishery since 1991. A catch decrease of ca. 50% in a decade lead to concern over the sustainability of the fishery and to wobbegongs being listed as vulnerable in NSW under the World Conservation Union Red List assessment. The aim of this research was to investigate wobbegong biology and ecology in relation to its fishery to provide essential data and information for sustainable management of the woggegong fishery. Biological data was obtained from 904 wobbegongs collected from commercial fishing boats, using setlines and lobset pots and by scuba diving. previously two species of wobbegongs were known to occur in NSW: the spotted wobbegong (Orectolobus maculatus) and the ornate wobbegong (O. ornatus). This study discovered a new species (O. halei) described as a subspecies by Whitley (1940), but which had been syonymised with O> ornatus due to a lack of taxonomic investigation.
Mode of access: World Wide Web.
307 p. ill., some col., maps
Styles APA, Harvard, Vancouver, ISO, etc.
8

Hancock, Andrew (Boze) T. « The biology and fishery of Roe's abalone Haliotis roei Gray in south-western Australia, with emphasis on the Perth fishery ». University of Western Australia. School of Animal Biology, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0068.

Texte intégral
Résumé :
The Roe’s abalone (Haliotis roei) fishery near Perth, Western Australia, is uniquely accessible, and highly vulnerable to overexploitation. The sustainability of this intensively utilized fishery requires robust assessment. To facilitate an assessment, this research aimed to provide rigorous and detailed biological information with appropriate interpretation. Four critical aspects of the species’ biology and population dynamics were investigated: (1) the stock structure; (2) the recreational catch; (3) an appropriate growth curve and description of size at age; and (4) abundance measures against which to assess the impact of fishing mortality. Allozyme electrophoresis was used to investigate stock structure across the species’ distribution. Standardized variance in allelic frequencies between 10 sites in south-western Australia indicated high levels of gene flow across the 3000 km sampled (mean FST = 0.009). An isolation-by-distance was evident when pairwise measures of GST were related to geographic distance (r=0.45, P<0.001). The area of complete genetic mixing was estimated from samples within the Perth fishery to be less than the distance between the two nearest sites, or 13 km. Consequently, the Perth fishery comprises numerous discrete stocks, each requiring independent assessment. A possible mechanism for this population structure is the retention of larvae in the wind driven currents oscillating in the near-shore lagoons, with rare pulses of long distance dispersal via the southerly Leeuwin current, running further offshore. The presumed impact of intensive recreational fishing, combined with substantial commercial quotas for the Perth fishery, had led to tight restrictions on fishing effort, without any quantitative measure of the recreational catch. A stratified creel survey was adapted to estimate the effort, catch rate and mean weight of abalone harvested by the recreational sector. Catches were estimated for reef complexes, or stocks, of less than 10 nautical miles (18.5 km) of coast. Between 1997 and 2000 the recreational catch varied from 30 to 45 tonnes whole weight, approximately equivalent to the commercial quota of 36 tonnes. On average 88% of the recreational catch came from two stocks, while 98% of the commercial catch came from these two, and one additional, stocks. The incidental mortality from recreational fishing, measured as the number of abalone left dead on the reef as a proportion of the estimated catch, was approximately 7% and 20% at two sites surveyed. Spatial and temporal patterns of growth were examined on the west coast of Western Australia. Growth increments were measured for abalone larger than about 30 mm from tagging studies at five sites in the Perth fishery, a site at the northern extent of the species’ distribution and a site in the southwest. Mean annual growth increments of the 0+ year class were obtained by fitting components to length frequencies from five sites in the Perth fishery, and combined with growth increments from each Perth tag site for model fitting. A von Bertalanffy growth curve provided a slightly better fit to the tag data, but a Gompertz growth curve was a much better fit when the mean increment from the 0+ to 1+ cohort was included, with the inflection occurring at about 40 mm, the size at sexual maturity. There was no difference in annual growth between the two years studied. There was significant variation in growth between the reef platform and adjacent sub-tidal reef, but this variation was site specific and faster growth rates were not consistently associated with either habitat. There was no latitudinal trend in growth rate. Growth at the Perth sites was the fastest and similar at all five sites with growth increments greater in summer than in winter. Size and abundance of abalone were measured using fixed transects and quadrats. Abalone densities were highest on the outer edge of the platform, intermediate in the middle of the reef platform, and lowest on both the inner platform and the sub-tidal reef. The pattern of mean lengths of abalone was the inverse of the density. Mean length and abundance were driven by the presence of post-settlement juveniles on the outer and middle reef habitats. There was a high spatial variation in abundance, with densities varying between transects at the same site, but the trend between years for each transect at a site was not significantly different. Abalone abundances, by size class, were examined from sites sampled between 1996 and 2002. A low density of post-settlement juveniles at all sites in 1997 was reflected in low densities of the 1+ and 2+ year classes in subsequent years. Abalone abundances at an unfished site were steady over the seven years. Two sites were located within each of the main stocks utilised by the recreational fishery. Abundance was stable or increasing in one stock, corresponding to a stable total catch. In the second stock the total catch increased over time and abundances declined. Perth is the focus of the Roe’s abalone fishery, with recreational and commercial fishers take about equal shares of the annual catch. Stocks are highly subdivided, with most of this catch coming from only 3 stocks occupying about 20 nautical miles of coast. Growth rates were found to be lower than previous estimates, and more similar to other commercial species of abalone. All life history stages are highly habitat specific, particularly the recruits, and the distribution and abundance through time indicate that the main stocks are near, or slightly over, the limit of sustainable fishing.
Styles APA, Harvard, Vancouver, ISO, etc.
9

Gibbs, Susan Elizabeth. « Perceptions in the South Australian commercial fishing industry with regard to seals / ». Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09ENV/09envg4443.pdf.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
10

McKenzie, Jane, et janemckenzie@malpage com. « Population demographics of New Zealand fur seals (Arctocephalus forsteri) ». La Trobe University. Zoology Department, School of Life Sciences, 2006. http://www.lib.latrobe.edu.au./thesis/public/adt-LTU20080509.121141.

Texte intégral
Résumé :
Assessment of trophic interactions between increasing populations of New Zealand fur seals (Arctocephalus forsteri) and fisheries in southern Australia is limited due to a lack of species specific demographic data and an understanding of the factors influencing population growth. To establish species specific demographic parameters a cross-sectional sample of New Zealand fur seal females (330) and males (100) were caught and individually-marked on Kangaroo Island, South Australia between 2000 and 2003. The seals were aged through examination of a postcanine tooth, which was removed from each animal to investigate age-specific life-history parameters. Annual formation of cementum layers was confirmed and accuracy in age estimation was determined by examination of teeth removed from individuals of known-age. Indirect methods of assessing reproductive maturity based on mammary teat characteristics indicated that females first gave birth between 4-8 years of age, with an average age at reproductive maturity of 5 years. Among reproductively mature females, age-specific reproductive rates increased rapidly between 4-7 years of age, reaching maximum rates of 70-81% between 8-13 years, and gradually decreased in older females. No females older than 22 years were recorded to pup. Age of first territory tenure in males ranged from 8-10 years. The oldest female and male were 25 and 19 years old, respectively. Post-weaning growth in females was monophasic, characterised by high growth rates in length and mass during the juvenile growth stage, followed by a gradual decline in growth rates after reproductive maturity. In contrast, growth in males was biphasic and displayed a secondary growth spurt in both length and mass, which coincided with sexual and social maturation, followed by a rapid decline in growth rates. Age-specific survival rates were high (0.823-0.953) among prime-age females (8-13 yrs of age) and declined in older females. Relative change in annual pup production was strongly correlated with reproductive rates of prime-age females and adult female survival between breeding seasons.
Styles APA, Harvard, Vancouver, ISO, etc.
Plus de sources

Livres sur le sujet "Fisheries South Australia"

1

Copes, Parzival. Prawn fisheries management in South Australia : With specific reference to problems in Gulf St. Vincent and Investigator Strait : report to the Ministry of Fisheries of South Australia. [Adelaide?] : [Ministry of Fisheries of South Australia?], 1986.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
2

National, Abalone Convention (2001 Adelaide S. Aust ). Charting our future : 2001 proceedings, National Abalone Convention, Adelaide, South Australia, 19-21 August 2001. [Adelaide, S. Aust.] : Abalone Industry Association of South Australia, Inc., 2001.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
3

Australian Society for Fish Biology. Symposium. ASFB2004 : Symposium proceedings : national symposium on ecosystem research and the management of fish and fisheries, 19-24 September 2004, Adelaide, South Australia. Sous la direction de Ward Tim M. Lyneham, A.C.T : Australian Society for Fish Biology, 2006.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

Deep Drainage Taskforce (W.A.). Deep drainage in south-west Western Australia : Making it work, not proving it wrong : report and recommendations to the Honourable Monty House MLA, Minister for Primary Industry and Fisheries. South Perth, WA : Agriculture W.A. for the Taskforce, 2000.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
5

Wallace-Carter, Evelyn. For they were fishers : The history of the fishing industry in South Australia. [Adelaide] : Amphitrite Pub. House, 1987.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
6

Flinders University. Dept. of Archaeology., dir. The development of cutters in relation to the South Australian oyster industry : An amalgamation of two parallel developing industries. [Bedford Park, S. Aust.] : Department of Archaeology, Flinders University, 2007.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
7

Day, Peter, Antony King et James Manna. Sea Creatures and Sea Shores : An Underwater Guide to the Gulfs of South Australia. Day Resource Strategies, Peter R., 2015.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
8

McPhee, Daryl. Environmental History and Ecology of Moreton Bay. CSIRO Publishing, 2017. http://dx.doi.org/10.1071/9781486307227.

Texte intégral
Résumé :
The south-east Queensland region is currently experiencing the most rapid urbanisation in Australia. This growth in human population, industry and infrastructure puts pressure on the unique and diverse natural environment of Moreton Bay. Much loved by locals and holiday-goers, Moreton Bay is also an important biogeographic region because its coral reefs, seagrass beds, mangroves and saltmarshes provide a suitable environment for both tropical and temperate species. The bay supports a large number of species of global conservation significance, including marine turtles, dugongs, dolphins, whales and migratory shorebirds, which use the area for feeding or breeding. Environmental History and Ecology of Moreton Bay provides an interdisciplinary examination of Moreton Bay, increasing understanding of existing and emerging pressures on the region and how these may be mitigated and managed. With chapters on the bay's human uses by Aboriginal peoples and later European settlers, its geology, water quality, marine habitats and animal communities, and commercial and recreational fisheries, this book will be of value to students in the marine sciences, environmental consultants, policy-makers and recreational fishers.
Styles APA, Harvard, Vancouver, ISO, etc.

Chapitres de livres sur le sujet "Fisheries South Australia"

1

Jacobsen, Anne Lif Lund. « The NSW Steam Trawl Fishery on the South-East Continental Shelf of Australia, 1915–1961 ». Dans Historical Perspectives of Fisheries Exploitation in the Indo-Pacific, 191–210. Dordrecht : Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8727-7_10.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
2

Gaynor, Andrea. « Shifting Baselines or Shifting Currents ? An Environmental History of Fish and Fishing in the South-West Capes Region of Western Australia ». Dans Historical Perspectives of Fisheries Exploitation in the Indo-Pacific, 231–50. Dordrecht : Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8727-7_12.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
3

Ferguson, Greg J., Jason Earl et Qifeng Ye. « The History of Fisheries in the Lower Lakes and Coorong ». Dans Natural History of the Coorong, Lower Lakes, and Murray Mouth region (Yarluwar-Ruwe). Royal Society of South Australia. University of Adelaide Press, 2018. http://dx.doi.org/10.20851/natural-history-cllmm-4.2.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

« Eels at the Edge : Science, Status, and Conservation Concerns ». Dans Eels at the Edge : Science, Status, and Conservation Concerns, sous la direction de Peter R. Todd. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781888569964.ch27.

Texte intégral
Résumé :
<em>Abstract.</em>—The New Zealand eel fishery comprises two species, the shortfin eel <em>Anguilla australis </em>and the New Zealand longfin eel <em>A. dieffenbachii</em>. A third species, the speckled longfin eel <em>A. reinhardtii</em>, is present in small numbers in some areas. Major fisheries in New Zealand are managed under the Quota Management System. Individual transferable quotas are set as a proportion of an annual total allowable commercial catch. The Quota Management System was introduced into the South Island eel fishery on 1 October 2000 and the North Island fishery on 1 October 2004. Freshwater eels have particular significance for customary Maori. Management policies allow for customary take and the granting of commercial access rights on introduction into the Quota Management System. Eel catches have remained relatively constant since the early 1970s. The average annual catch from 1989–1990 to 2001–2002 (fishing year) was 1,313 mt. Catch per unit effort remained constant from 1983 to 1989 and reduced from 1990 to 1999. Statistically significant declines in catch per unit effort for New Zealand longfin eel were found in some areas over the latter period. For management, an annual stock-assessment process provides an update on stock status.
Styles APA, Harvard, Vancouver, ISO, etc.
Vous pouvez également être intéressé par les bibliographies sur le sujet « Fisheries South Australia » pour d’autres types de sources :
Articles de revues Thèses
Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!

Vers la bibliographie